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10 panying drawin pSeries meet. no Fig. e, there are three series of corrugw -UNTTED sTATEs PATENT oEEroE. N

, bannir. Braam AND JULIUs G. GARELLY, F NEw YORK, N. Y., AssIeNoRs To HORACE' H. DAY, 0F SAME PLACE.

UFACTURING `TJORRUGATED FABRICS.

Speccation of Letters Patent No. 24,6911, dated July 5, 185.9.

To all whom 'it may consom: Beit known that we, FREDERICK BAARE and J ULI'US GEOSS GARELLY, both of the city, county, and State of NewYork, have invented certain new and useful Improvements in Corrugated Fabrics; and we do hereby declare that the following isa` full, clear, and exact description of our said invention, reference being had to the accomin which- 4 Figure 1 repre nts a face view of a strip of our fabric ;v Fig. 2. is a view of the face or right side of a piece of the fabric prior to 1 corrugation; Fig. 3. is a View of a portion of Fig. 2'. upon an enlarged scale Aand reversed so as to exhibit the wrong side of the fabr; Figs. 4. and 5, are views of stri s ofthe fabric having more than two series o corrugations;

Figs, `.6 and 7. are viewsof these fabrics extended to show the division lines of the different series of corrugat'ions; Fig. 8 is a View of the wrong side of a sample' of the fabric in an extendedstate; and Figs. 9 and 10 are views of a. sample of the fabric having l a single contractile strand.

Our invention conslstsmainly in a corrugated ,fabric (that is a fabric in which the material forms a sanas of Waves ccmposed of consecutive -rd es and furrows) havulgstwo .more paralle series of corrugations' combined or arranged V1n such manner with respect to each other that the ridges of each 'series are opposite the depressed portions of the adjacentV series, sothat the waves of the adjacent series alternate in the direction in which the series extend. Several examples 'of this fabric are represented' 1n the annexed drawing at Figs ever differing 1n other respects, all agree in -40 the peculiarity above mentioned. Thus, the

samples represented at Figs. 1 and 9 consist of two series of corrugati0ns,"A, and B, which extend arallel and adjacent to each other in the irectionof the length ofthe abric the ridges c. c. c. of the series A, al-

ternating with those, z', i, i, of the series B; .and the-rid es of each series gradually vanshing at t e .divison line where the two In the example represented at tiene, .each of which bears the same relation tothe series adjacent thereto as the series of 1, 4, 5, and 9, which, how

the sample represented at Fig. 1 bear to .each other. In the sample re resented at Fig. 5 there are four series, tlie corrugations of each of which alternate with those of the adjacent series. In the figures thus represented, which represent samples of our fabric of the most perfect form in which we have thus far manufactured it, the adjacent lends of the corrugations of adjacent series lap ast each other, so that, when the fabric is yed of a bright color, the corrugations presentan appearance similar to that presented by the petals of the dahlia,

whence we name the lmproved'corrugated fabric when formed of silk, Rubans dahlia or dahlia ribbons; when formed of this `material it constitues a beautiful trimming for ladies dresses.

Our improved corrugated fabric may be formed in various ways, but we prefer to manufacture it by weaving .a textile material silk for example) invconnection with stran s of an elastic material (such for example as india rubber) in an .extended state, in such manner that when contraction takes place in the elastic material after the weaving V1s completed, the compound fabric coretes ltself iu the manner .exhibited .in the iinlshed fabric as shown in the drawing; and we insure a uniformity in size of the overlapping extremities of the corrugations of adjacent series by `rendering the fabric more sleazyat the division linebetween the two in the process of weaving. Thus, in the .example -represented at Figs. 1, 2, and .3, silk warp an filling are interwoven in a ribbon loom with each other and' with two strands ,of rubber a and e, 1n an extended state, inA such manner that the rubber strands are partially interwoven with the silk filling, and are partially left free therefrom the manipulation of the leaves of heddles of lthe loom being so regulated, in the mannerfa- Y miliar to weavers, that the interwoven portions b of one rubber strand, are .opposite the bare portions d of the adjacent rubberstrand, alsdthat the fabric is loosely tweeled in the direction of the diagonal lines s, 1' which connect the interwoven portions o- One rub r st and with the interwoven :jacent strand- When is tions orthe ,fabric thus p. ..u.ed removed from t.,

' is of considerable breadth ing. If, however,

rugations are controlled by the rubber .-strands; and, as these strands are interwoven at alternate parts of the fabric, the corrugations of the fabric are caused to arrange themselves in two series whose members alternate with each other as shown at Fig. 1.

In the process of corrugation, the division lines or folds of the fabric between the two series of corrugations naturally followothe lines s, r, because the fabric is more sleazy and less stiH at'these lines than elsewhere, and the sleaziest portion naturally bends most readily.

In `manufacturing thel samples represented at Figs. 4 and 6, two pairs of'rubber strands are used, and in manufacturing those represented at4 Figs. 5 and 7 five single strands are used. If any one series of corrugations in proportion to corrugations of the width of the separate expedient to inwliich it is composed, it is troduce one or more supplementary rubberv strands at suitable distances apart, to insure uniformity in each w'ave throughout its entire length; in this case, all the strands appertaining to one series of waves must be interwoven with the parts of the textile material which constitute the depressions of the corrugations, and left detached from those parts which constitutethe ridges of the corrugations. v l

'When the corrugations are very protuberant and gradually vanish into" each other at V the division line .between the two series, it

is expedient to introduce a series of strands of rubber between the two extreme laterall boundsof the division line as shown in thc view of a, reverse side `or wrong side of such a specimen previous to contraction, represented atFig. 8.. When on the other hand the oorrugations are small, and the fabric has but two series, as shown at Fig. 9, the contraction may be producedby means of a single strand of rubber, as shown at Fig. 10.

After the fabric is corrugated it may have lits appearance varied by pressing down the.

corrugations into. overlapping folds or plaits, but this mode of finishing does not change the fabric to such an extent a`s to make it no longer embody our invention, as the corrugations are ,only flattened, and as they still are combinedin such manner that vthe corrugations of adjacent series alternate.

The rubber strands, if composed'of vulcanized rubber or similar materialstretched previously, to weaving, and maintained in weavinggwill contract of themselves whenthey are liberated fromthe means by which they are maintained in an extended state during the weavthe strands be formed of Vcase however the fabric is vstltute in fact but one native rubber or other similar material that may be caused to assume an inelastic condi` tion after being extended, it is necessary to apply heat after the fabric is woven'to cause the contraction. The strands thus partially interwoven and partly' left bare constitute contractile strands upon which the waves are gathered up, and they can vbe replaced by strands of inelastic material upon which the waves may be gathered up by drawing the strands after the fabric is woven. In this not so perfect, as it is practically inelastic.

Having thus described'our new fabric and we have essayed with success, we deem it proper to state that we' do not limit kour invention'to any peculiarity inthe methodof manufacture, nor to any particular color or combination of colors in the any peculiar material nor to any specific numberof contractile strands,'as we have no doubt that these may be varied to a very great extent. p l

We also deem it pro er to state' that we are aware that ribbons ave been so woven uponinelastic contractile strands that the material can be gatheredup into plaits by drawing the strands; but in this case the fabric consists either of but one series of plaits, or of two or more series dividin at the contractile strands, but so combine 'in the fabric that the protuberant portions of one series are in line with the protuberant portions of the adjacent series (instead of alternating as inour fabric), so as to conseries flattened at ycertain parts of its breadth. Q

We are also aware that contractile strands of rubber either native or vulcanized, have been used to eHect the corrugation of a textile material asis seen in what are called elastic shirred goods; either woven -orl cea method of manufacturing the same which article, 'nor to mented; but in these cases the parallelstrands of rubber are not so interwoven or otherwise lcombined with thefabric as to be alternately detached therefrom and connectv ed therewith at alternating parts of their length, as they are when used in our fabric; nor are they so combined vwith the lfabric that, when the rubber contracts, the comers alternate. l

Therefore, what we claim as our invention and desire to secure by Letters Patent 1spound fabric gathers up into two or more parallel serles of corrugations whose mem- 1. The combination` of two or more arallel series of corrugations in the-same'fa ricl in' such manner thatthe ridges of the adja# cent series alternate.

(one or more) with a textlle material, in such' manner that, when the rubber con- 2. We also claim combining rubber strands traote, the compoun fabric gamers up into two or more parallel series of corrugatons, Whose members alternate.

3. XVe also clai 5 with a textile material in such manner t the strands are fabric and left free therefrom at rn combining rubber strands hat alternately secured to the alternating parte loi their length, so that the secured part of one rubber strand corresponds 10 the free part of 4:. We sleazy at the div also claim forming with an adjacent one.

the fabric ision lines between the c0r' rugations of adla'c'ent series, so as to insuren e form of the ad]acent ex#A 

